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Simple IR security sensor

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Simple IR security sensor

I am looking for a IR security sensor curcuit with LED emitter and a receiver for the line beam

I have seen this circuit and can someone either suggest a better circuit or modify this for 15FT distance apart

http://www.electroschematics.com/9023/infrared-beam-break-detector

I like to have blinking LED if someone break the beam

Thanks
asked Nov 26, 2017 by jomattamyahoo-com (120 points)

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